Even if she has lost sight of how damaging this kind of ending is, her supervisor will know it and might provide guidance.

I think the complicating factor is that any kind of reversal of her decision, even if it is for the proper goodbye session you should have had, could cause further hurt and confusion. Also, you deserve more than one session to say goodbye after 5 years of hard work. You should have your five months!

I would be furious about my therapist telling me that she loved me in this way. Such intimate things should be said with care and consideration, not as parting shots and not without an ongoing dialogue about their impact.

I really feel for you, this is truly heartbreaking. Keep talking to us here, I think many of us can imagine something of your pain.